Sorry Al, the comment doesn't only apply to me. I'm the person who put together the Part III library and am solely responsible for it. It is a supplemental addition to the existing libraries and contains new objects that are not found in the Part I or Part II libraries nor does it change anything in those libraries whatsoever. The Part III library went through extensive testing and review by the RTMM team before it was made available for download and no one had any problems with the final version. The statement of mine that you quote is entirely correct. If, as you say, everything worked correctly before updating your libraries then something you've subsequently done has caused your problem.
You said in another thread that "I just can't figure this out. I was away for 10 days. Come back and go to Misty's place and the Club house and the hangar are gone!!! What gives? I had installed the new object libs and the Yes Bay Lodge before leaving and it all work good. Scenery priorities all look good." If all was working then, with all libraries installed, then why would doing a re-update of the libraries change what worked for you before?
You obviously are missing something somewhere and I suggest you meticulously go over everything again, paying special attention to the EZ SceneryFSXP3D entry.